<template>
  <div class="type-nav">
    <div class="container">
        <div @mouseleave="currentIndex='off'"
             @mouseenter="currentIndex=-1"
        >
            <h2 class="all">全部商品分类</h2>
            <transition name="sort">
                <div class="sort" v-show="hideItemFn()">
                    <div class="all-sort-list2">
                        <div class="item"
                             v-for="(c1,index) in c1List"
                             :key="c1.categoryId"
                             :class="showItem(index)"
                             @mouseenter="throttle(index)"
                             @click="link"
                        >
                            <!--1级分类-->
                            <h3 >
                                <!--                            <router-link-->
                                <!--                                :to="`/Search?categoryName=${ c1.categoryName }&category1Id=${ c1.categoryId }`"-->
                                <!--                            >{{ c1.categoryName }}</router-link>-->
                                <!--                            <a href="javaScript:;" @click="link({categoryName:c1.categoryName,-->
                                <!--                                                                category1Id:c1.categoryId})">{{ c1.categoryName }}</a>-->
                                <a href="javaScript:;" :data-categoryName="c1.categoryName"
                                   :data-category1Id="c1.categoryId">{{ c1.categoryName }}</a>
                            </h3>
                            <div class="item-list clearfix" >
                                <div class="subitem">
                                    <dl class="fore" v-for="c2 in c1.categoryChild" :key="c2.categoryId">
                                        <!--2及分类-->
                                        <dt >
                                            <!--                                        <router-link-->
                                            <!--                                            :to="`/Search?categoryName=${ c2.categoryName }&category2Id=${ c2.categoryId }`"-->
                                            <!--                                        >{{ c2.categoryName }}</router-link>-->
                                            <!--                                        <a href="javaScript:;" @click="link({categoryName:c2.categoryName,-->
                                            <!--                                                                category2Id:c2.categoryId})">{{ c2.categoryName }}</a>-->
                                            <a href="javaScript:;" :data-categoryName="c2.categoryName"
                                               :data-category2Id="c2.categoryId">{{ c2.categoryName }}</a>
                                        </dt>
                                        <dd >
                                            <!--3及分类-->
                                            <em v-for="c3 in c2.categoryChild" :key="c3.categoryId">
                                                <!--                                            <router-link-->
                                                <!--                                                :to="`/Search?categoryName=${ c3.categoryName }&category3Id=${ c3.categoryId }`"-->
                                                <!--                                            >{{ c3.categoryName }}</router-link>-->
                                                <!--                                            <a href="javaScript:;" @click="link({categoryName:c3.categoryName,-->
                                                <!--                                                                category3Id:c3.categoryId})">{{ c3.categoryName }}</a>-->
                                                <a href="javaScript:;" :data-categoryName="c3.categoryName"
                                                   :data-category3Id="c3.categoryId"
                                                   @click="hideThis"
                                                >{{ c3.categoryName }}</a>
                                            </em>

                                        </dd>
                                    </dl>
                                </div>
                            </div>
                        </div>

                    </div>
                </div>
            </transition>
        </div>
        <nav class="nav">
            <a href="###">服装城</a>
            <a href="###">美妆馆</a>
            <a href="###">尚品汇超市</a>
            <a href="###">全球购</a>
            <a href="###">闪购</a>
            <a href="###">团购</a>
            <a href="###">有趣</a>
            <a href="###">秒杀</a>
        </nav>
    </div>
  </div>
</template>

<script>
import {mapState} from 'vuex';
import throttle from 'loadsh/throttle'
// import _ from 'loadsh'
export default {
    name: "typeNav",
    data(){
        return {
            currentIndex:'off',
            hideItem:true
        }
    },

    computed:{
        //获取子仓库的数据
        ...mapState({
            c1List:state => state.home.BaseCategoryList
        }),
    },
    methods: {

        showItem(index){
            return{itemHover:this.currentIndex === index }
        },
        throttle:throttle(function(index){
            if(this.currentIndex!=='off')
            this.currentIndex=index
        },100),
        link(event){
            const data={name:'Search'}
            const urlData=event.target.dataset
            const query={categoryName:urlData.categoryname};
            const params=this.$route.params
            urlData.category1id ? query.category1Id=urlData.category1id : ''
            urlData.category2id ? query.category2Id=urlData.category2id : ''
            urlData.category3id ? query.category3Id=urlData.category3id : ''

            params ? data.params=params : ""
            data.query=query

            this.$router.push(data)
        },
        hideItemFn:function(){

            if(this.$route.path==='/Home'||this.$route.path==='/'||this.currentIndex!=="off"){
                return this.hideItem
            }else{
                return !this.hideItem
            }
        },
        hideThis(){
            this.currentIndex="off"
        }
    },
    created(){

    }
}
</script>

<style scoped lang="less">
.type-nav {
  border-bottom: 2px solid #e1251b;

  .container {
    width: 1200px;
    margin: 0 auto;
    display: flex;
    position: relative;

    .all {
      width: 210px;
      height: 45px;
      background-color: #e1251b;
      line-height: 45px;
      text-align: center;
      color: #fff;
      font-size: 14px;
      font-weight: bold;
    }

    .nav {
      a {
        height: 45px;
        margin: 0 22px;
        line-height: 45px;
        font-size: 16px;
        color: #333;
      }
    }

    .sort {
      position: absolute;
      left: 0;
      top: 45px;
      width: 210px;
      height: 461px;
      position: absolute;
      background: #fafafa;
      z-index: 999;

      .all-sort-list2 {
        .item {
          h3 {
            line-height: 30px;
            font-size: 14px;
            font-weight: 400;
            overflow: hidden;
            padding: 0 20px;
            margin: 0;

            a {
              color: #333;
            }
          }

          .item-list {
            display: none;
            position: absolute;
            width: 734px;
            min-height: 460px;
            background: #f7f7f7;
            left: 210px;
            border: 1px solid #ddd;
            top: 0;
            z-index: 9999 !important;

            .subitem {
              float: left;
              width: 650px;
              padding: 0 4px 0 8px;

              dl {
                border-top: 1px solid #eee;
                padding: 6px 0;
                overflow: hidden;
                zoom: 1;

                &.fore {
                  border-top: 0;
                }

                dt {
                  float: left;
                  width: 54px;
                  line-height: 22px;
                  text-align: right;
                  padding: 3px 6px 0 0;
                  font-weight: 700;
                }

                dd {
                  float: left;
                  width: 415px;
                  padding: 3px 0 0;
                  overflow: hidden;

                  em {
                    float: left;
                    height: 14px;
                    line-height: 14px;
                    padding: 0 8px;
                    margin-top: 5px;
                    border-left: 1px solid #ccc;
                  }
                }
              }
            }
          }

          &.itemHover {
              background: green;
              .item-list {
              display: block;
            }
          }
        }
      }
    }
  }
}
</style>